Question: Posix Shared Memory 1 Should posix shared memory be cachable or non-cachable. Explain your answer. 2 - When three programs share a block of memory,

Posix Shared Memory

1 Should posix shared memory be cachable or non-cachable. Explain your answer.

2 - When three programs share a block of memory, when is the memory returned to the system:

-when the first program exits

-when the last program exits

-when returned explicitly by a program

-when the system reboots.

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